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Titolo:
Methods of activating catalysts for hydrodesulfurization of light gas oil (Part 1) - Catalytic activity of CoMo/Al2O3 catalyst presulfided with polysulfides for hydrodesulfurization of dibenzothiophene
Autore:
Yamada, S; Qian, WH; Ishihara, A; Wang, GD; Li, L; Kabe, T;
Indirizzi:
Tokyo Univ Agr & Technol, Dept Chem Engn, Tokyo 1848588, Japan Tokyo Univ Agr & Technol Tokyo Japan 1848588 Engn, Tokyo 1848588, Japan Dainippon Ink & Chem Inc, Kamisu, Ibaraki 3140193, Japan Dainippon Ink & Chem Inc Kamisu Ibaraki Japan 3140193 raki 3140193, Japan
Titolo Testata:
SEKIYU GAKKAISHI-JOURNAL OF THE JAPAN PETROLEUM INSTITUTE
fascicolo: 4, volume: 44, anno: 2001,
pagine: 217 - 224
SICI:
0582-4664(200107)44:4<217:MOACFH>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLYBDENUM-ALUMINA CATALYSTS; PULSE TRACER METHOD; MO CATALYSTS; SULFIDATION; HYDROGENATION; SULFIDABILITY; SPECTROSCOPY; MECHANISM; TUNGSTEN;
Keywords:
presulfidation; polysulfide; cobalt-molybdenum catalyst; hydrodesulfurization; S-35 radioisotope tracer method;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Kabe, T Tokyo Univ Agr & Technol, Dept Chem Engn, 2-24-16 Nakacho, Tokyo 1848588, Japan Tokyo Univ Agr & Technol 2-24-16 Nakacho Tokyo Japan 1848588apan
Citazione:
S. Yamada et al., "Methods of activating catalysts for hydrodesulfurization of light gas oil (Part 1) - Catalytic activity of CoMo/Al2O3 catalyst presulfided with polysulfides for hydrodesulfurization of dibenzothiophene", SEKIYU GAKK, 44(4), 2001, pp. 217-224

Abstract

The organic sulfur compound bis-(1,1,3,3-tetramethylbutyl)-polysulfide wasinvestigated as a novel sulfiding agent for hydrodesulfurization (HDS) catalyst by evaluating the conversion of dibenzothiophene (DBT) on a commercial Co-Mo/Al2O3 catalyst. The catalyst presulfided using the polysulfide in situ showed the same or higher activity than those using the conventional sulfiding agents dimethyldisulfide (DMDS) and CS2. The catalytic activity forHDS and hydrogenation depended remarkably on the presulfiding procedure such as type of sulfiding agent, temperature program in the presulfiding procedure, and in situ or ex situ method. The S-35 radioisotope tracer method was used to elucidate the effect of various sulfiding operation parameters on sulfur behavior on the sulfided catalyst in the HDS reaction of DBT. The effects of sulfiding agent and temperature program on the catalytic activity mainly originate from differences in the amount of labile sulfur formed in the different sulfiding processes.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 12:56:38